J
We have a plastic thin film thickness gauge that has a precision and accuracy of +/-1.5 microns and our thickness specification is 42 +/-6 microns. The GRR data shows a very low NDC - number of distinct categories - while the other ratios seem adequate. My guess is the GRR is compromised because the gauge precision is not good enough?
The NDC is so low that most would say the the thin film gauge is useless for this +/-12 tolerance which would imply so is the GRR. Your review?

The NDC is so low that most would say the the thin film gauge is useless for this +/-12 tolerance which would imply so is the GRR. Your review?
